checkout -p: handle new files correctly
The original patch selection code was written for `git add -p`, and the fundamental unit on which it works is a hunk. We hacked around that to handle deletions back in 24ab81ae4d (add-interactive: handle deletion of empty files, 2009-10-27). But `git add -p` would never see a new file, since we only consider the set of tracked files in the index. However, since the same machinery was used for `git checkout -p` & friends, we can see new files. Handle this case specifically, adding a new prompt for it that is modeled after the `deleted file` case. This also fixes the problem where added _empty_ files could not be staged via `git checkout -p`. Reported-by: Merlin Büge <toni@bluenox07.de> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin committed
May 27, 2020 at 21:09 UTC
2c8bd8471a6abc68064dafc743362547fc730f77
3 files changed
+61
-9
add-patch.c
+23
-7
index d8dafa8168..eaace1b824 100644
--- a/add-patch.c
+++ b/add-patch.c
@@ -9,7 +9,7 @@
#include "compat/terminal.h"
enum prompt_mode_type {
- PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_HUNK,
+ PROMPT_MODE_CHANGE = 0, PROMPT_DELETION, PROMPT_ADDITION, PROMPT_HUNK,
PROMPT_MODE_MAX, /* must be last */
};
@@ -32,6 +32,7 @@ static struct patch_mode patch_mode_add = {
.prompt_mode = {
N_("Stage mode change [y,n,q,a,d%s,?]? "),
N_("Stage deletion [y,n,q,a,d%s,?]? "),
+ N_("Stage addition [y,n,q,a,d%s,?]? "),
N_("Stage this hunk [y,n,q,a,d%s,?]? ")
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -53,6 +54,7 @@ static struct patch_mode patch_mode_stash = {
.prompt_mode = {
N_("Stash mode change [y,n,q,a,d%s,?]? "),
N_("Stash deletion [y,n,q,a,d%s,?]? "),
+ N_("Stash addition [y,n,q,a,d%s,?]? "),
N_("Stash this hunk [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -76,6 +78,7 @@ static struct patch_mode patch_mode_reset_head = {
.prompt_mode = {
N_("Unstage mode change [y,n,q,a,d%s,?]? "),
N_("Unstage deletion [y,n,q,a,d%s,?]? "),
+ N_("Unstage addition [y,n,q,a,d%s,?]? "),
N_("Unstage this hunk [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -98,6 +101,7 @@ static struct patch_mode patch_mode_reset_nothead = {
.prompt_mode = {
N_("Apply mode change to index [y,n,q,a,d%s,?]? "),
N_("Apply deletion to index [y,n,q,a,d%s,?]? "),
+ N_("Apply addition to index [y,n,q,a,d%s,?]? "),
N_("Apply this hunk to index [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -120,6 +124,7 @@ static struct patch_mode patch_mode_checkout_index = {
.prompt_mode = {
N_("Discard mode change from worktree [y,n,q,a,d%s,?]? "),
N_("Discard deletion from worktree [y,n,q,a,d%s,?]? "),
+ N_("Discard addition from worktree [y,n,q,a,d%s,?]? "),
N_("Discard this hunk from worktree [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -142,6 +147,7 @@ static struct patch_mode patch_mode_checkout_head = {
.prompt_mode = {
N_("Discard mode change from index and worktree [y,n,q,a,d%s,?]? "),
N_("Discard deletion from index and worktree [y,n,q,a,d%s,?]? "),
+ N_("Discard addition from index and worktree [y,n,q,a,d%s,?]? "),
N_("Discard this hunk from index and worktree [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -163,6 +169,7 @@ static struct patch_mode patch_mode_checkout_nothead = {
.prompt_mode = {
N_("Apply mode change to index and worktree [y,n,q,a,d%s,?]? "),
N_("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "),
+ N_("Apply addition to index and worktree [y,n,q,a,d%s,?]? "),
N_("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -185,6 +192,7 @@ static struct patch_mode patch_mode_worktree_head = {
.prompt_mode = {
N_("Discard mode change from index and worktree [y,n,q,a,d%s,?]? "),
N_("Discard deletion from index and worktree [y,n,q,a,d%s,?]? "),
+ N_("Discard addition from index and worktree [y,n,q,a,d%s,?]? "),
N_("Discard this hunk from index and worktree [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -206,6 +214,7 @@ static struct patch_mode patch_mode_worktree_nothead = {
.prompt_mode = {
N_("Apply mode change to index and worktree [y,n,q,a,d%s,?]? "),
N_("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "),
+ N_("Apply addition to index and worktree [y,n,q,a,d%s,?]? "),
N_("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "),
},
.edit_hunk_hint = N_("If the patch applies cleanly, the edited hunk "
@@ -247,7 +256,7 @@ struct add_p_state {
struct hunk head;
struct hunk *hunk;
size_t hunk_nr, hunk_alloc;
- unsigned deleted:1, mode_change:1,binary:1;
+ unsigned deleted:1, added:1, mode_change:1,binary:1;
} *file_diff;
size_t file_diff_nr;
@@ -441,7 +450,7 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
pend = p + plain->len;
while (p != pend) {
char *eol = memchr(p, '\n', pend - p);
- const char *deleted = NULL, *mode_change = NULL;
+ const char *deleted = NULL, *added = NULL, *mode_change = NULL;
if (!eol)
eol = pend;
@@ -460,11 +469,12 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
} else if (p == plain->buf)
BUG("diff starts with unexpected line:\n"
"%.*s\n", (int)(eol - p), p);
- else if (file_diff->deleted)
+ else if (file_diff->deleted || file_diff->added)
; /* keep the rest of the file in a single "hunk" */
else if (starts_with(p, "@@ ") ||
(hunk == &file_diff->head &&
- skip_prefix(p, "deleted file", &deleted))) {
+ (skip_prefix(p, "deleted file", &deleted) ||
+ skip_prefix(p, "new file", &added)))) {
if (marker == '-' || marker == '+')
/*
* Should not happen; previous hunk did not end
@@ -484,6 +494,8 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
if (deleted)
file_diff->deleted = 1;
+ else if (added)
+ file_diff->added = 1;
else if (parse_hunk_header(s, hunk) < 0)
return -1;
@@ -536,8 +548,10 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
starts_with(p, "Binary files "))
file_diff->binary = 1;
- if (file_diff->deleted && file_diff->mode_change)
- BUG("diff contains delete *and* a mode change?!?\n%.*s",
+ if (!!file_diff->deleted + !!file_diff->added +
+ !!file_diff->mode_change > 1)
+ BUG("diff can only contain delete *or* add *or* a "
+ "mode change?!?\n%.*s",
(int)(eol - (plain->buf + file_diff->head.start)),
plain->buf + file_diff->head.start);
@@ -1397,6 +1411,8 @@ static int patch_update_file(struct add_p_state *s,
if (file_diff->deleted)
prompt_mode_type = PROMPT_DELETION;
+ else if (file_diff->added)
+ prompt_mode_type = PROMPT_ADDITION;
else if (file_diff->mode_change && !hunk_index)
prompt_mode_type = PROMPT_MODE_CHANGE;
else
git-add--interactive.perl
+19
-2
index 10fd30ae16..f36c0078ac 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -754,16 +754,18 @@ sub parse_diff_header {
my $head = { TEXT => [], DISPLAY => [], TYPE => 'header' };
my $mode = { TEXT => [], DISPLAY => [], TYPE => 'mode' };
my $deletion = { TEXT => [], DISPLAY => [], TYPE => 'deletion' };
+ my $addition = { TEXT => [], DISPLAY => [], TYPE => 'addition' };
for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
my $dest =
$src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ? $mode :
$src->{TEXT}->[$i] =~ /^deleted file/ ? $deletion :
+ $src->{TEXT}->[$i] =~ /^new file/ ? $addition :
$head;
push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
}
- return ($head, $mode, $deletion);
+ return ($head, $mode, $deletion, $addition);
}
sub hunk_splittable {
@@ -1427,46 +1429,55 @@ my %patch_update_prompt_modes = (
stage => {
mode => N__("Stage mode change [y,n,q,a,d%s,?]? "),
deletion => N__("Stage deletion [y,n,q,a,d%s,?]? "),
+ addition => N__("Stage addition [y,n,q,a,d%s,?]? "),
hunk => N__("Stage this hunk [y,n,q,a,d%s,?]? "),
},
stash => {
mode => N__("Stash mode change [y,n,q,a,d%s,?]? "),
deletion => N__("Stash deletion [y,n,q,a,d%s,?]? "),
+ addition => N__("Stash addition [y,n,q,a,d%s,?]? "),
hunk => N__("Stash this hunk [y,n,q,a,d%s,?]? "),
},
reset_head => {
mode => N__("Unstage mode change [y,n,q,a,d%s,?]? "),
deletion => N__("Unstage deletion [y,n,q,a,d%s,?]? "),
+ addition => N__("Unstage addition [y,n,q,a,d%s,?]? "),
hunk => N__("Unstage this hunk [y,n,q,a,d%s,?]? "),
},
reset_nothead => {
mode => N__("Apply mode change to index [y,n,q,a,d%s,?]? "),
deletion => N__("Apply deletion to index [y,n,q,a,d%s,?]? "),
+ addition => N__("Apply addition to index [y,n,q,a,d%s,?]? "),
hunk => N__("Apply this hunk to index [y,n,q,a,d%s,?]? "),
},
checkout_index => {
mode => N__("Discard mode change from worktree [y,n,q,a,d%s,?]? "),
deletion => N__("Discard deletion from worktree [y,n,q,a,d%s,?]? "),
+ addition => N__("Discard addition from worktree [y,n,q,a,d%s,?]? "),
hunk => N__("Discard this hunk from worktree [y,n,q,a,d%s,?]? "),
},
checkout_head => {
mode => N__("Discard mode change from index and worktree [y,n,q,a,d%s,?]? "),
deletion => N__("Discard deletion from index and worktree [y,n,q,a,d%s,?]? "),
+ addition => N__("Discard addition from index and worktree [y,n,q,a,d%s,?]? "),
hunk => N__("Discard this hunk from index and worktree [y,n,q,a,d%s,?]? "),
},
checkout_nothead => {
mode => N__("Apply mode change to index and worktree [y,n,q,a,d%s,?]? "),
deletion => N__("Apply deletion to index and worktree [y,n,q,a,d%s,?]? "),
+ addition => N__("Apply addition to index and worktree [y,n,q,a,d%s,?]? "),
hunk => N__("Apply this hunk to index and worktree [y,n,q,a,d%s,?]? "),
},
worktree_head => {
mode => N__("Discard mode change from worktree [y,n,q,a,d%s,?]? "),
deletion => N__("Discard deletion from worktree [y,n,q,a,d%s,?]? "),
+ addition => N__("Discard addition from worktree [y,n,q,a,d%s,?]? "),
hunk => N__("Discard this hunk from worktree [y,n,q,a,d%s,?]? "),
},
worktree_nothead => {
mode => N__("Apply mode change to worktree [y,n,q,a,d%s,?]? "),
deletion => N__("Apply deletion to worktree [y,n,q,a,d%s,?]? "),
+ addition => N__("Apply addition to worktree [y,n,q,a,d%s,?]? "),
hunk => N__("Apply this hunk to worktree [y,n,q,a,d%s,?]? "),
},
);
@@ -1476,7 +1487,7 @@ sub patch_update_file {
my ($ix, $num);
my $path = shift;
my ($head, @hunk) = parse_diff($path);
- ($head, my $mode, my $deletion) = parse_diff_header($head);
+ ($head, my $mode, my $deletion, my $addition) = parse_diff_header($head);
for (@{$head->{DISPLAY}}) {
print;
}
@@ -1490,6 +1501,12 @@ sub patch_update_file {
push @{$deletion->{DISPLAY}}, @{$hunk->{DISPLAY}};
}
@hunk = ($deletion);
+ } elsif (@{$addition->{TEXT}}) {
+ foreach my $hunk (@hunk) {
+ push @{$addition->{TEXT}}, @{$hunk->{TEXT}};
+ push @{$addition->{DISPLAY}}, @{$hunk->{DISPLAY}};
+ }
+ @hunk = ($addition);
}
$num = scalar @hunk;
t/t3701-add-interactive.sh
+19
index ac43f835a5..7bc0c3fe6e 100755
--- a/t/t3701-add-interactive.sh
+++ b/t/t3701-add-interactive.sh
@@ -403,6 +403,25 @@ test_expect_success 'deleting an empty file' '
diff_cmp expected diff
'
+test_expect_success 'adding an empty file' '
+ git init added &&
+ (
+ cd added &&
+ test_commit initial &&
+ >empty &&
+ git add empty &&
+ test_tick &&
+ git commit -m empty &&
+ git tag added-file &&
+ git reset --hard HEAD^ &&
+ test_path_is_missing empty &&
+
+ echo y | git checkout -p added-file -- >actual &&
+ test_path_is_file empty &&
+ test_i18ngrep "Apply addition to index and worktree" actual
+ )
+'
+
test_expect_success 'split hunk setup' '
git reset --hard &&
test_write_lines 10 20 30 40 50 60 >test &&